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Chapter 1. Introduction

61200264L1 Quad E1/PRA Module User Manual

1-3

Specifications

Each port of the Quad E1/PRA Module conforms to the following specifica-

tions:

PHYSICAL DESCRIPTION

The Quad E1/PRA Module plugs into any available option slot in the rear of

the ATLAS 800 or ATLAS 800

PLUS

(see Figure 1-2).

Figure 1-2. Quad E1/PRA Module

Line rate

2.048 Mbps, +

75 bps

Capacity

E1: 1 to 31 TS0s

PRA: 30B +D

Line Codes

HDB3, AMI

Framing

NFAS, FAS, TS16 MF and CRC-4

Tests

Self test, line loopback, port loopback

Connectors

DB-15 (using supplied converter cable)

Terminating Impedance

120 ohms balanced + 5%

75 ohms unbalanced +

5% (with P/N 1200209L1)

75 ohms balanced +

5% (with P/N 1200209L1)

QUAD E1-PRA

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 35 36

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